Like ocean beaches, sheltered coastal areas experience land loss from erosion and sea level rise. In response, property owners often install hard structures such as bulkheads as a way to prevent further erosion, but these structures cause changes in the coastal environment that alter landscapes, reduce public access and recreational opportunities, diminish natural habitats, and harm species that depend on these habitats for shelter and food. Mitigating Shore Erosion Along Sheltered Coasts recommends coastal planning efforts and permitting policies to encourage landowners to use erosion control alternatives that help retain the natural features of coastal shorelines.

This report presents the findings of a task force review of the U.S. Army Corps of Engineers Shoreline Protection and Beach Erosion Control Program. The assessment of the program was in response to Fiscal Year 1994 "Passback Language" from the Office of Management and Budget. The report responds to concerns about the shoreline protection program, particularly concerning costs, benefits, environmental effects and the related influences on shoreline development. The study was performed in two phases. The initial phase was completed in January 1994 and published as IWR Report 94-PS-1, Shoreline Protection and Beach Erosion Control Study. Phase I: Cost Comparison of Shoreline Protection Projects of the U.S. Army Corps of Engineers. The purpose of the first phase report was to provide early input to the Office of the Management and Budget regarding the scope and cost of Federal Civil Works shore protection. This second and final phase of the study incorporates: additional analysis of project costs and sand emplacements; and overview of risk management in the coastal zone; a comparison of actual versus anticipated benefits; a discussion on environmental considerations; and an analysis of any induced development effects associated with the Federal shore protection and beach erosion control program. Also, included is a summary of study findings and conclusions. The basis of this report and the data compiled by the task force reflects conditions as of 1 July 1993.

Hurricane- and coastal-storm-related losses have increased substantially during the past century, largely due to increases in population and development in the most susceptible coastal areas. Climate change poses additional threats to coastal communities from sea level rise and possible increases in strength of the largest hurricanes. Several large cities in the United States have extensive assets at risk to coastal storms, along with countless smaller cities and developed areas. The devastation from Superstorm Sandy has heightened the nation's awareness of these vulnerabilities. What can we do to better prepare for and respond to the increasing risks of loss? Reducing Coastal Risk on the East and Gulf Coasts reviews the coastal risk-reduction strategies and levels of protection that have been used along the United States East and Gulf Coasts to reduce the impacts of coastal flooding associated with storm surges. This report evaluates their effectiveness in terms of economic return, protection of life safety, and minimization of environmental effects. According to this report, the vast majority of the funding for coastal risk-related issues is provided only after a disaster occurs. This report calls for the development of a national vision for coastal risk management that includes a long-term view, regional solutions, and recognition of the full array of economic, social, environmental, and life-safety benefits that come from risk reduction efforts. To support this vision, Reducing Coastal Risk states that a national coastal risk assessment is needed to identify those areas with the greatest risks that are high priorities for risk reduction efforts. The report discusses the implications of expanding the extent and levels of coastal storm surge protection in terms of operation and maintenance costs and the availability of resources. Reducing Coastal Risk recommends that benefit-cost analysis, constrained by acceptable risk criteria and other important environmental and social factors, be used as a framework for evaluating national investments in coastal risk reduction. The recommendations of this report will assist engineers, planners and policy makers at national, regional, state, and local levels to move from a nation that is primarily reactive to coastal disasters to one that invests wisely in coastal risk reduction and builds resilience among coastal communities.

Tracings: G330.